Category Health Calculators – BMI, Fitness & Wellness Tools

Health Calculators for BMI, Fitness, Body Metrics & Wellness

Explore accurate tools to calculate BMI, body fat, calories, metabolism, fitness levels and wellness indicators to understand your health trends over time.

Explore Our Health & Wellness Calculators

This category gives you instant access to a full suite of health-focused tools designed to help you understand your body, track progress and make informed wellness decisions. These calculators use medically recognized standards to estimate BMI, calorie needs, daily energy expenditure, target heart rate, hydration requirements and other vital health metrics.

Whether your goal is weight management, muscle gain, improved fitness, or better long-term wellness tracking, these tools offer clear, actionable insights. Every calculator is mobile-friendly, easy to use and built to give you accurate results instantly.

Calorie Calculator
Estimate daily calories for weight loss, maintenance, or gain.
TDEE Calculator
Calculate TDEE to set calorie targets for your fitness goal.
BMR Calculator
Calculate BMR to estimate resting calories burned per day.
BMI Calculator
Calculate BMI and check weight category by height and weight.
Body Fat Calculator
Estimate body fat percentage using measurements and formulas.
Army Body Fat Calculator
Estimate body fat percent using U.S. Army tape-test method inputs.
Lean Body Mass Calculator
Calculate lean body mass from weight, body fat, and sex.
Ideal Weight Calculator
Estimate ideal weight range using popular health formulas.
Waist-to-Height Ratio Calculator
Calculate waist-to-height ratio to assess central adiposity risk.
Waist-to-Hip Ratio Calculator
Calculate waist-to-hip ratio to assess body fat distribution.
Body Surface Area Calculator
Calculate body surface area using standard medical formulas.
Weight Loss Calculator
Plan weight loss timeline using calorie deficit and targets.
Macro Calculator
Calculate macros for your goal: fat loss, muscle gain, or maintenance.
Protein Calculator
Calculate daily protein target by weight, training, and goal.
Intermittent Fasting Calculator
Plan intermittent fasting windows (16:8, 18:6, OMAD) with daily targets.
Water Intake Calculator
Track daily water intake goals in liters or ounces.
Calories Burned Calculator
Estimate calories burned from workouts and daily activities.
Steps to Calories Calculator
Estimate calories burned from step count, height, weight, and pace.
Pace Calculator
Calculate pace per km or mile from time and distance.
VO2 Max Calculator
Estimate VO2 max from running or fitness test results.
One Rep Max Calculator
Estimate one-rep max from reps, weight, and formula options.
Target Heart Rate Calculator
Calculate target heart rate zones for training intensity.
Pregnancy Calculator
Track pregnancy timeline, weeks, milestones, and due date.
Due Date Calculator
Calculate pregnancy due date from LMP, conception, or IVF.
Ovulation Calculator
Estimate ovulation day and fertile window from cycle length.
Period Calculator
Track period dates and estimate your next cycle start.
Blood Pressure Calculator
Estimate blood pressure categories and averages from readings.
GFR Calculator
Estimate GFR from creatinine, age, sex, and lab inputs.
Blood Glucose Converter
Convert blood glucose units between mg/dL and mmol/L.
A1C to eAG Calculator
Convert A1C to estimated average glucose (eAG) and vice versa.
Weight Converter
Convert weight between kg, lb, oz, and stones instantly.
Body Shape Calculator
Estimate body shape from bust/waist/hip measurements.
Body Type Calculator
Estimate body type tendencies using measurement ratios.
Plate Weight Calculator
Build barbell plate combinations to hit a target weight.
Pet Weight Calculator
Track pet weight changes and convert kg↔lb with trends.